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    SYSTEM AND METHOD FOR IDENTIFYING AND RESPONDING TO P-WAVE OVERSENSING IN A CARDIAC SYSTEM
    1.
    发明申请
    SYSTEM AND METHOD FOR IDENTIFYING AND RESPONDING TO P-WAVE OVERSENSING IN A CARDIAC SYSTEM 有权

    公开(公告)号：US20210402197A1

    公开(公告)日：2021-12-30

    申请号：US17472614

    申请日：2021-09-11

    Applicant: Medtronic, Inc.

    Inventor： Xusheng ZHANG ,  Paul J. DEGROOT

    IPC: A61N1/39 ,  A61N1/365 ,  A61B5/00 ,  A61B5/316 ,  A61B5/352 ,  A61B5/363

    Abstract: A cardiac medical system, such as an implantable cardioverter defibrillator (ICD) system, receives a cardiac electrical signal by and senses cardiac events when the signal crosses an R-wave sensing threshold. The system determines at least one sensed event parameter from the cardiac electrical signal for consecutive cardiac events sensed by the sensing circuit and compares the sensed event parameters to P-wave oversensing criteria. The system detects P-wave oversensing in response to the sensed event parameters meeting the P-wave oversensing criteria; and adjusts at least one of an R-wave sensing control parameter or a therapy delivery control parameter in response to detecting the P-wave oversensing.

    SYSTEM AND METHOD FOR IDENTIFYING AND RESPONDING TO P-WAVE OVERSENSING IN A CARDIAC SYSTEM
    2.
    发明申请
    SYSTEM AND METHOD FOR IDENTIFYING AND RESPONDING TO P-WAVE OVERSENSING IN A CARDIAC SYSTEM 审中-公开

    公开(公告)号：US20190308026A1

    公开(公告)日：2019-10-10

    申请号：US16449883

    申请日：2019-06-24

    Applicant: Medtronic, Inc.

    Inventor： Xusheng ZHANG ,  Paul J. DEGROOT

    IPC: A61N1/39 ,  A61B5/00 ,  A61N1/365 ,  A61B5/0464 ,  A61B5/0456 ,  A61B5/04

    Abstract: A cardiac medical system, such as an implantable cardioverter defibrillator (ICD) system, receives a cardiac electrical signal by and senses cardiac events when the signal crosses an R-wave sensing threshold. The system determines at least one sensed event parameter from the cardiac electrical signal for consecutive cardiac events sensed by the sensing circuit and compares the sensed event parameters to P-wave oversensing criteria. The system detects P-wave oversensing in response to the sensed event parameters meeting the P-wave oversensing criteria; and adjusts at least one of an R-wave sensing control parameter or a therapy delivery control parameter in response to detecting the P-wave oversensing.

    IMPLANTABLE MEDICAL DEVICE SYSTEM HAVING IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR (ICD) SYSTEM AND SUBSTERNAL LEADLESS PACING DEVICE
    7.
    发明申请
    IMPLANTABLE MEDICAL DEVICE SYSTEM HAVING IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR (ICD) SYSTEM AND SUBSTERNAL LEADLESS PACING DEVICE 审中-公开

    公开(公告)号：US20170319863A1

    公开(公告)日：2017-11-09

    申请号：US15661365

    申请日：2017-07-27

    Applicant: Medtronic, Inc.

    Inventor： Amy E. THOMPSON-NAUMAN ,  Melissa G.T. CHRISTIE ,  Paul J. DEGROOT ,  Rick D. MCVENES

    IPC: A61N1/39 ,  A61N1/375 ,  A61N1/362 ,  A61N1/372

    Abstract: Implantable cardiac systems and methods for providing substernal pacing in an ICD system are described. In one example, an implantable cardiac system comprises an ICD system and an implantable leadless pacing device (LPD) communicatively coupled to the ICD system. The ICD system includes an ICD and an implantable defibrillation lead having a proximal portion coupled to the ICD and a distal portion having a defibrillation electrode configured to deliver a defibrillation shock to a heart of the patient. The LPD includes a housing, a first electrode on the housing, a second electrode on the housing, and a pulse generator within the housing and electrically coupled to the first electrode and the second electrode. The housing of the LPD is implanted substantially within an anterior mediastinum of the patient and the pulse generator is configured to deliver pacing pulses to a heart via the first and second electrodes.

    IMPLANTABLE EXTRAVASCULAR ELECTRICAL STIMULATION LEAD HAVING IMPROVED SENSING AND PACING CAPABILITY
    8.
    发明申请
    IMPLANTABLE EXTRAVASCULAR ELECTRICAL STIMULATION LEAD HAVING IMPROVED SENSING AND PACING CAPABILITY 有权
    具有改进的传感和遮盖能力的可浸入式超声电刺激引线

    公开(公告)号：US20150306410A1

    公开(公告)日：2015-10-29

    申请号：US14695255

    申请日：2015-04-24

    Applicant: Medtronic, Inc.

    Inventor： Mark T. MARSHALL ,  Jian CAO ,  Melissa G.T. CHRISTIE ,  Paul J. DEGROOT ,  Vladimir P. NIKOLSKI ,  Amy E. THOMPSON-NAUMAN

    IPC: A61N1/39 ,  A61N1/05

    CPC classification number: A61N1/05 ,  A61N1/0504 ,  A61N1/3918

    Abstract: Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted as described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first electrode segment and a second electrode segment proximal to the first electrode segment by a distance. The leads may include at least one pace/sense electrode, which in some instances, is located between the first defibrillation electrode segment and the second defibrillation electrode segment.

    Abstract translation: 具有电极布置的植入式医疗电引线，使得当如所述植入时，除颤线圈电极和步态/感测电极基本上位于心室上方。 引线包括具有远侧部分和近端的细长引线主体，引线主体的近端处的连接器，沿着引线主体的远端部分设置的除颤电极，其中除颤电极包括第一电极段和 靠近第一电极段的第二电极段一段距离。 引线可以包括至少一个速度/感测电极，其在一些情况下位于第一除颤电极段和第二除颤电极段之间。

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